fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53

General

Target

fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Size

76KB
MD5

784ccb4a311f970bfe8be300cdcc2e44
SHA1

c516cc7b4f2f8ca1f48479cb6a5f90684e954278
SHA256

fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53
SHA512

7be434a5871dc37977ec5699676e5af4168b6cde16b0c50ffefd8548f56f3e8e86eb737f7b483eedf6a8530eb9d1296699b25a8828bc9d94d2f766fbac1efbdd
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO3uI:GhfxHNIreQm+HiauI

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2976	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
File created	C:\Windows\SysWOW64\¢«.exe	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
File opened for modification	C:\Windows\system\rundll32.exe	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717616477"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717616477"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2976	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
2976	rundll32.exe
2976	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 2976	1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe	28
PID 1888 wrote to memory of 2976	1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe	28
PID 1888 wrote to memory of 2976	1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe	28
PID 1888 wrote to memory of 2976	1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe	28
PID 1888 wrote to memory of 2976	1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe	28
PID 1888 wrote to memory of 2976	1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe	28
PID 1888 wrote to memory of 2976	1888	fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe	28

C:\Users\Admin\AppData\Local\Temp\fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe
"C:\Users\Admin\AppData\Local\Temp\fbf16fb6d21488f2319fe567debf32927b4456f84f3bd8e470bf7b1b1b2e1e53.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1888
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:2976

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
76KB

MD5
7039a56b1e1d6004b35eaafc3c129853

SHA1
92cf7a0f230e81378c4b2def9bee3cdbc325250c

SHA256
20a3d31ad39c55a698b57f5aef9981f229a0ae7b48099fa178de0a3eafae0a75

SHA512
4de8ad4a1a99a0957b601aa482d85c055e974d9123e388141db269f393ae981cf47b964683b5d551a37a56673159e4548772292ddda659d0fefacdf1b803f64e

Download Submit
\Windows\system\rundll32.exe

Filesize
73KB

MD5
16a16d3c6ee1dff8cbbeb1e6d10ed632

SHA1
6a43860e207e0745e9869eb390374b9712735475

SHA256
1f271f74de329a550fe22fd9979cc84fbcab808b322155a3d8ef6446c7b824b4

SHA512
5e1e2b1624c89a104416784580ce416381b89dca4d515ea49358658f236dd2bfca4ba5805980059f6645ade5e88a10c59e0ac2c1ea382b5388f363906098ce92

Download Submit
memory/1888-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1888-12-0x00000000002F0000-0x0000000000306000-memory.dmp

Filesize
88KB

Download
memory/1888-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1888-21-0x00000000002F0000-0x00000000002F2000-memory.dmp

Filesize
8KB

Download
memory/2976-18-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads